Close the shell after 10 minutes of inactivity

dotlib/cattle.sh

@@ -0,0 +1,28 @@
+reset-elapsed() {
+  (( last_cmd_at = SECONDS ))
+}
+
+ping-timer() {
+  kill -USR1 "$reaper_pid" 2>/dev/null
+}
+
+kill-reaper() {
+  kill -KILL "$reaper_pid"
+}
+
+{
+  trap reset-elapsed USR1
+  last_cmd_at=0
+
+  while sleep 1; do
+    (( elapsed = SECONDS - last_cmd_at ))
+
+    if (( elapsed > 600 )); then
+      kill -KILL "$$"
+      exit
+    fi
+  done
+} &
+
+reaper_pid=$! prompt_cmds+=(ping-timer)
+trap kill-reaper EXIT